Pulmonary Hypoplasia: Prediction with Use of Ratio of MR Imaging–measured Fetal Lung Volume to US-estimated Fetal Body Weight

Tanigaki, Shinji; Miyakoshi, Kei; Tanaka, Mamoru; Hattori, Yoshihisa; Matsumoto, Tadashi; Ueno, Kazunori; Uehara, Katsuhiko; Nishimura, Osamu; Minegishi, Kazuhiro; Ishimoto, Hitoshi; Shinmoto, Hiroshi; Ikeda, Kazushige; Yoshimura, Yasunori

doi:10.1148/radiol.2323030359

Cited by 61 publications

(28 citation statements)

References 16 publications

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“…This is in concordance with numerous previous publications on this topic, which investigated the degree of pulmonary hypoplasia on fetal MR imaging and correlated that with the severity of neonatal outcomes [7,9,14,20,22,23,46,47].…”

Section: Discussionsupporting

confidence: 92%

“…In addition to 2D and 3D ultrasound studies, the potential of MR imaging in the assessment of lung hypoplasia and the prediction of mortality has been validated, and has been shown to be reliable for the prenatal investigation of lung hypoplasia compared with US [5][6][7][8]. Most MR imaging studies have dealt with the volumetric assessment of the lung, where lung volumes were found to be significantly reduced in fetuses with CDH [9,10].…”

Section: Introductionmentioning

confidence: 99%

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Assessment of lung development in isolated congenital diaphragmatic hernia using signal intensity ratios on fetal MR imaging

et al. 2009

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Assessment of lung development in isolated congenital diaphragmatic hernia using signal intensity ratios on fetal MR imaging

et al. 2009

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“…However, at 33 weeks, a great increase in size of the hyperechogenic lesion was observed, caused by a large cyst ( Figure 1) associated with polyhydramnios (amniotic fl uid index of 46) and preterm labor. The ratios of observed/expected fetal lung volume, 5 ultrasonographic lung/body weight 6 and cyst/lung volume were 0.22, 0.005 and 6.99 respectively (Figures 2 and 3). The patient was hospitalized: tocolysis was performed using intravenous terbutaline for 12 hours, 2.5 liters of amniotic fl uid were drained and a cyst-amniotic shunt (Harrison Fetal Bladder Stent Set, Cook Medical Inc., United States) was placed.…”

Section: Case Reportmentioning

confidence: 93%

To shunt or not to shunt a pulmonary adenomatoid cystic malformation after 33 weeks of gestation: a case report

et al. 2008

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CONTEXT: Macrocystic adenomatoid malformation of the lung can cause severe mediastinal shift, hydrops and polyhydramnios, thereby increasing the risk of perinatal deaths. After 33 weeks of gestation, repeated puncturing of the cyst is recommended. We present a case in which a cyst-amniotic shunt was placed instead of performing this procedure. CASE REPORT: A cyst-amniotic shunt was placed at 33 weeks of gestation because of a large macrocystic adenomatoid malformation of the lung associated with severe mediastinal shift and polyhydramnios. Although it was confirmed that the catheter was in the correct place, the cyst increased in size again two weeks later, associated with repetition of polyhydramnios. It was postulated that the catheter was blocked, and we chose to place another catheter instead of performing repeated punctures. The cystic volume, polyhydramnios and mediastinal shift regressed progressively. At 38.5 weeks, a 3,310/g male infant was delivered without presenting any respiratory distress. The infant underwent thoracotomy on the 15th day of life. Thus, in the present study, we discuss the possibility of placing a cyst-amniotic shunt instead of performing repeated cystic punctures, even at a gestational age close to full term.

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“…Die Autoren um Tanigaki et al konnten zeigen, dass eine Vorhersage einer Lungenhypoplasie durch das Verhältnis von MR-tomografisch gemessenem Lungenvolumen zum mittels Sonografie bestimmten fetalen Körpergewicht besser möglich war als mit den nur per Ultraschall ermittelten Zirkumferenzquotienten von Thorax zu Abdomen oder interthorakalen Quotienten. Bei Feten mit pulmonaler Hypoplasie war in dieser Arbeit der Quotient mit 0,012 ml/g ± 0,008 signifikant niedriger als bei der Kontrollgruppe mit 0,028 ml/g ± 0,007 (p < 0,001) [40]. Das mit der MRT ermittelte Lungenvolumen stellt einen prädiktiven Faktor für die Abschätzung der postnatalen Mortalität des Feten dar [41].…”

Section: Huisman Et Al Und Fogliarini Mit Girard Et Al Haben In Ihrenunclassified

Fetales MRT

Blondin¹,

Turowski²,

Schaper³

2007

Fortschr Röntgenstr

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Ultrasonography is the method of choice for prenatal malformation screening, but it does not always provide sufficient information for correct diagnosis or adequate abnormality evaluation. Fetal MRI is increasingly being used to complete sonographic findings. It was initially used for evaluation of cerebral abnormalities but is increasingly being applied to other fetal areas. In vivo investigation of fetal brain maturation has been enhanced by MRI. An adequate analysis of fetal chest and abdomen can be achieved with fast T2-, T1-weighted and diffusion-weighted imaging (DWI). The advantages include the great field of view and the excellent soft tissue contrast. This allows correct diagnosis of congenital diaphragmatic hernia and evaluation of the consequences on pulmonary growth. Other pulmonary malformations, such as cystic adenomatoid malformation, sequestration and bronchogenic cysts, can also be easily identified. Renal position can be quickly determined using DWI sequences and renal agenesia can be easily diagnosed with only one sequence. Prenatal MRI is virtually as effective as postnatal examination, dispenses with transport of a potentially very ill newborn, and provides logistic advantages. Therefore, prenatal MRI is useful for adequate postnatal treatment of newborns with malformations.

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Pulmonary Hypoplasia: Prediction with Use of Ratio of MR Imaging–measured Fetal Lung Volume to US-estimated Fetal Body Weight

Abstract: The FLV/FBW reflects the adequacy of intrauterine lung growth and can help predict PH.

Cited by 61 publications

References 16 publications

Assessment of lung development in isolated congenital diaphragmatic hernia using signal intensity ratios on fetal MR imaging

Assessment of lung development in isolated congenital diaphragmatic hernia using signal intensity ratios on fetal MR imaging

To shunt or not to shunt a pulmonary adenomatoid cystic malformation after 33 weeks of gestation: a case report

Fetales MRT

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